کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10408673 | 893668 | 2005 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Three-dimensional diffuse optical imaging of hand joints: System description and phantom studies
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی برق و الکترونیک
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Three-dimensional diffuse optical imaging of hand joints: System description and phantom studies Three-dimensional diffuse optical imaging of hand joints: System description and phantom studies](/preview/png/10408673.png)
چکیده انگلیسی
In this paper we describe a three-dimensional (3D) continuous wave (CW) diffuse optical tomography (DOT) system and present 3D volumetric reconstruction studies using this DOT system with simple phantom models that simulate hand joints. The CCD-based DOT system consists of 64Ã64 source/detector fiber optic channels, which are arranged in four layers, forming a cylindrical fiber optic/tissue interface. Phantom experiments are used to evaluate system performance with respective to axial spatial resolution, optical contrast and target position for detection of osteoarthritis where cartilage is the primary target region of interest. These phantom studies suggest that we are able to quantitatively resolve a 2Â mm thick “cartilage” and qualitatively resolve a 1Â mm thick “cartilage” using our 3D reconstruction approach. Our results also show that optical contrast of 3:1-7:1 between the “disease cartilage” and normal cartilage can be quantitatively recovered. Finally, the target position along axial direction on image reconstruction is studied. All the images are obtained using our 3D finite-element-based reconstruction algorithm.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics and Lasers in Engineering - Volume 43, Issue 11, November 2005, Pages 1237-1251
Journal: Optics and Lasers in Engineering - Volume 43, Issue 11, November 2005, Pages 1237-1251
نویسندگان
Qizhi Zhang, Huabei Jiang,